Squamous cell carcinomas are the most common cancer of the lower lip. In most cases, the tumor is small and occupies less than a third of the lower lip, so the defect created can be closed with a primary suture without altering the esthetics and function of the lower lip. However, there is a percentage of large tumors that affect more than two thirds of the lower lip, in which the primary suture is insufficient to correct the defect created by resection of the tumor.
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